SLPX331M400E3P3

Part Overview

The SLPX331M400E3P3 is a 330 µF, 400 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can-style snap-in package. This component is in active product status and is designed for general purpose applications requiring high-voltage energy storage and filtering. Alternative equivalent parts may be required due to supply chain considerations, regional availability, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

SLPX331M400E3P3

Cornell Dubilier Electronics (CDE)In Stock: 1147SLPX331M400E3P3 Datasheet

Current PartRFQ

LLS2G331MELB

NichiconIn Stock: 2353LLS2G331MELB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitutes for the SLPX331M400E3P3 are determined by matching the following critical electrical and mechanical parameters:

• Capacitance Value: 330 µF (exact match required)
• Voltage Rating: 400 V (minimum acceptable rating)
• Tolerance: ±20% (standard tolerance class)
• Operating Temperature Range: -25°C ~ 85°C
• Lifetime Rating: 3000 Hrs @ 85°C
• Lead Spacing: 0.394" (10.00mm) for PCB compatibility
• Can Diameter: 1.181" (30.00mm) for mechanical fit
• Package Configuration: Radial, Can - Snap-In (mechanical and electrical interface requirement)
• Polarization: Polar (device characteristic)
• Mounting Type: Through Hole

The substitute part LLS2G331MELB (Nichicon) meets all critical parameter requirements for direct substitution while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the SLPX331M400E3P3 and LLS2G331MELB meet all specified electrical requirements for 330 µF, 400 V aluminum electrolytic capacitor applications. Both components are in active product status and maintain full ROHS3 compliance and REACH unaffected status.

The LLS2G331MELB features a slightly increased seated height of 1.378" (35.00mm) compared to the original 1.181" (30.00mm). This dimensional difference must be evaluated against available PCB clearance in the target application. Where vertical space is constrained, the original SLPX331M400E3P3 is preferred. Where height tolerance permits, the Nichicon alternative provides equivalent electrical performance with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the LLS2G331MELB be used as a direct replacement for SLPX331M400E3P3?

A: The LLS2G331MELB is electrically equivalent, with identical capacitance, voltage rating, tolerance, temperature range, and ripple current specifications at 120 Hz. However, the substitute part has a maximum seated height of 1.378" (35.00mm) versus 1.181" (30.00mm) for the original. Mechanical compatibility depends on available PCB clearance in your application.

Q: What are the critical parameters for substitution?

A: Capacitance (330 µF), voltage rating (400 V), tolerance (±20%), temperature range (-25°C ~ 85°C), lead spacing (10.00mm), can diameter (30.00mm), and package type (Radial, Can - Snap-In) are non-negotiable for substitution. Ripple current capability at 120 Hz and lifetime rating must also be maintained.

Q: Does the height difference between these parts affect electrical performance?

A: No. The 0.197" (5.00mm) increase in seated height does not alter electrical characteristics including capacitance, voltage rating, ESR, ripple current handling, or operating temperature range. The difference is purely mechanical and affects only PCB layout compatibility.

Q: Are both parts compliant with environmental regulations?

A: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial electronics applications.

Q: What should determine my part selection?

A: Select based on supply availability and PCB mechanical constraints. If vertical clearance permits the 1.378" (35.00mm) height, the Nichicon LLS2G331MELB is a valid substitute. If clearance is limited to 1.181" (30.00mm), use the original SLPX331M400E3P3.